乙烯及1-MCP处理对不同开花指数牡丹切花开放衰老进程和水分平衡的影响  

Influences of Ethylene and 1-MCP Treatments on the Opening and Senescence Process and Water Balance of Peony Cut Flowers with Different Flowering Indexes

作　　者：刘燕燕[1] 张玉环[1] 王玮然[1] 霍志鹏 刘爱青 董丽[1] 

机构地区：[1]北京林业大学园林学院国家花卉工程中心,北京100083 [2]洛阳国际牡丹园,河南洛阳471000 [3]山东菏泽牡丹园管理处,山东菏泽274001

出　　处：《安徽农业科学》2009年第20期9455-9458,共4页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金(30571309);教育部博士点基金(20060022008)

摘　　要：[目的]研究乙烯及1-MCP对不同开放阶段‘洛阳红’牡丹切花开放及衰老进程中切花品质及水分平衡的影响。[方法]以开花指数为1、2、3级的‘洛阳红’牡丹切花为试材,测定了其开放及衰老进程中花径增大率、开花指数、水分平衡及瓶插寿命对不同处理的响应。[结果]采用10.0μl/L外源乙烯处理6 h加快了切花的开放进程,缩短了切花的瓶插寿命及最佳观赏期持续时间,而采用1.0μl/L1-MCP处理6 h则延缓了切花的开放进程,延长了切花的瓶插寿命,但抑制了切花的正常开放。对水分平衡值的研究表明,水分平衡值的动态变化是影响‘洛阳红’牡丹切花衰老的重要因素,1-MCP处理改善了切花的水分平衡,使水分平衡值为0的时间延后。[结论]1-MCP主要通过延缓‘洛阳红’牡丹切花的开放进程来延长切花的瓶插寿命。[ Objective] The aim was to study the effects of ethylene and 1-MCP on cut flower quality and water balance in the opening and se- nescence course of peony cut flowers of ‘Luoyanghong＇ during their different opening stages. [ Method] With peony cut flowers of ‘Luoyanghong＇ with flowering index of class Ⅰ,Ⅱ and Ⅲ as tested material, the response on different treatments for increasing rate of flower diameter, flowering index,water balance and vase life during peony opening and senescence was determined. [ Result] The opening process of cut flower was accelerated,vase life and the duration of the best ornamental period of cut flower were shortened by using 1.0 μl/L exogenous ethylene treatment for 6 h, however, the opening process of cut flower was delayed, vase life prolonged, but the normal opening of cut flower was restrained by adopting 1.0 μl/L 1-MCP treatment for 6 h. The research on water balance value showed that the dynamic change of water balance value was the important factor to affect the senescence of peony cut flowers of ‘Luoyanghong＇ ,the -MCP treatment improved the water balance of cut flower and delayed the time that could make the water balance value as zero. [Conclusion] The 1-MCP prolonged the vase life of cut flower mainly by delaying the opening process of peony cut flowers of ‘Luoyanghong＇.

关 键 词：牡丹切花 乙烯 1-MCP 切花品质 水分平衡 

分 类 号：S685.11[农业科学—观赏园艺]